Lanny Marcus wrote: > My email is on gmail.com IMAP and yes, If it's on imap, then forget about TB mbox files. the messages are on the server (TB can cache messages, but you are not supposed to know how it exactly does. so don't play this game). > I could start over with > Thunderbird by downloading everything into Thunderbird from the IMAP > server. > > The problem is that if I ever want to migrate from Thunderbird, I want > to be sure that I know where the mbox files are located and at this > time, I cannot find the mbox files. just leave all mail on the server and use whatever client you want. that's one of the benefits of imap. > > The documentation on the Thunderbird support site is not showing what I > am seeing on my Desktop box. most people use POP3, in which case messages are downloaded and stored locally. Things are different with imap. the copies that the client holds are only for performances and you are not supposed to use them. > Possibly I should post this on a > Thunderbird mailing list, because their documentation shows something > that is not correct?